Home / 86,988,835.17-120,041,519.67-47,830,337.73

Finding the Fourth Proportional to 86,988,835.17, 120,041,519.67 and 47,830,337.73

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Solution

The fourth proportional to 86,988,835.17, 120,041,519.67 and 47,830,337.73 is: 66,004,176.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,988,835.17 : 120,041,519.67 = 47,830,337.73 : x
  2. Step 2: Convert to fraction form
    86,988,835.17/120,041,519.67 = 47,830,337.73/x
  3. Step 3: Cross multiply
    86,988,835.17x = 120,041,519.67 × 47,830,337.73
  4. Step 4: Simplify right side
    86,988,835.17x = 5,741,626,427,438,538
  5. Step 5: Solve for x
    x = 5,741,626,427,438,538/86,988,835.17
  6. Step 6: Final answer
    x = 66,004,176.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.